Concrete structure and block.



C. DALE.

CONCRETE STRUCTURE AND BLOCK. APPLICATION FILED SERT,`281917.

LQQGL Patenfed Mayv14,1918.

INVENTOR WxTNEssr-as L 20 e inforcing rods in tying or bondinthe blocksCLIFFORD DALE, 0F WABASH, INDIANA.

CONCRETE STRUCTURE ANI) BLOCK.

Specification of Letters Patent.

Patented May 14, 1918.

Application mea september 2s, 1917. serial No. 193,794.

To all whom 'it may concern:

Be it known that I, CLIFFORD DALE, a citizen of the United States,residing at Wabash, in the county of Wabash and State of Indiana, haveinvented new and useful Im-v provements in Concrete Structures andBlocks, of which the following is a specification.

This invention relates to improvements in concrete structures, such assilos and the like and also with reference to improvements in blocks forbuilding or forming the walls of such structures, one object of theinvention being to-provide improved means to form ties or bonds betweenthe ends of blocks in a course of blocks; another object being to e'ectimprovements in the construction of the blocks by providing the samewith longitudinally arranged reinforcing rods and with means to ooactwith the retogether in a course; a further o ject being to provide theblocks with coengaging tongues and grooves in their upper sides to bondthe blocks between the courses. y

The invention consists in the construction, 'combination and arrangementof den vices hereinafter described and claimed.

lso

In the accompanying drawings Figure l is a detailed perspective view ofa concrete block.

Fig. 2 is an elevation, partly in section, of a portion of a wallcomposed of my improved concrete blocks. Fig. 3 is a detailed plan oftwo of the blocks showing the same with their opposing ends tied orbonded in accordance with my invention.

The blocks 1 may be of any suitable size and shape but are here shown asof oblong rectangular form and as slightly curved so that each blockmay' form a segment of a curved wall such as that of a silo. Each blockis provided in the upper side with a longitudinal groove 2 and isprovided at the lower side with a longitudinal tongue 3 to fit in thegroove of the block of the next lower course, the said tongues andgrooves serving to bond the blocks against lateral displacement, as'will be understood. Each block is also provided at each end-,with avertical groove 4. n

While molding each block a reinforcing rod or wire' 5 is embeddedtherein longitudinally and at a point midwa between'the upper and lowersides. Ea reinforcing rod orwire has U-shaped ends 6, the bights ofwhich extend into the vertical grooves at the ends of the block.

When laying the blocks in a course sub- .stantlally inverted V-Shaped,bonding or tymg elements 7 are employed between the meeting ends of theblocks, one of said bondposing ends of the blocks are then filled withcement, mortar or other suitable plastic material which not only servesto close the joint between the ends of the blocks but also serves toentirely ll the vertical grooves thereof and to embed the ends of thereinforcing rods or wires and the said tying or bonding elements so thatthe same are v immovably held in place, thus reatly strengthening andadding to the sol'idity of the wall or otherstructure.

While I have herein shown and described a preferred form of myinvention, I would have it understood that changes may be' made in theform, proportion and construction of the several parts, withoutdeparting from the' spirit of my invention and within the scope of theappended claims.

Having thus described my invention, I claim 1. In a structure of theclass described, a pair of blocks having vertical grooves in theiropposing ends and also havinv reinforcing elements extendin theret oughprovided with bends whic project into said grooves, and a substantiallyinverted V shaped bonding element arranged in said grooves and with itsarms engaging the said bends and the lower end of its arms engaging thebottoms of jthe grooves, said bonding elements connecting thereinforcing elements together and the upwardly converging arms thereofserving when said bonding element is forced downwardly to draw saidreinforcing elements toward each other and thereby causing saidreinforcing elements' to draw the opposing ends of the blocks together.

2. In a structure of the class described, a

'pair of blocks having vertical grooves in their opposing ends and alsohaving reinforcing elements extending therethrough provided with bendswhich reject into said grooves, and a substantia ly inverted V- shapedbonding element arran ed in said grooves and with its arms engagmg thesaid bends `'and the lower end of its arms engaging the bottoms of thegrooves,4 said bond- 'ing elements connecting the reinforcing elementstogether and the upwardly converging arms thereof serving when saldbonding element is forced downwardly to draw said 10 reinforcingelements toward each other and 1n the said grooves and holding 'the said15 bonding elements in place.

In testimony whereof I aix my signature.

. CLIFFORD

